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  <meta charset="UTF-8">
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  <title>Document</title>
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<body>
  <script>
    //扩展运算符能将数组转换为逗号分隔的参数序列
    const tfboys = ['yiyangqianxi','wangyuan','wangjunkai']
    function chunwan(){
      console.log(arguments)
    }
    chunwan(tfboys)
    chunwan(...tfboys) //chunwan('yiyangqianxi','wangyuan','wangjunkai')
  </script>
</body>
</html>